Bug fix 2047
[blender-staging.git] / source / blender / blenlib / intern / storage.c
1 /**
2  * $Id$
3  *
4  * ***** BEGIN GPL/BL DUAL LICENSE BLOCK *****
5  *
6  * This program is free software; you can redistribute it and/or
7  * modify it under the terms of the GNU General Public License
8  * as published by the Free Software Foundation; either version 2
9  * of the License, or (at your option) any later version. The Blender
10  * Foundation also sells licenses for use in proprietary software under
11  * the Blender License.  See http://www.blender.org/BL/ for information
12  * about this.
13  *
14  * This program is distributed in the hope that it will be useful,
15  * but WITHOUT ANY WARRANTY; without even the implied warranty of
16  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
17  * GNU General Public License for more details.
18  *
19  * You should have received a copy of the GNU General Public License
20  * along with this program; if not, write to the Free Software Foundation,
21  * Inc., 59 Temple Place - Suite 330, Boston, MA  02111-1307, USA.
22  *
23  * The Original Code is Copyright (C) 2001-2002 by NaN Holding BV.
24  * All rights reserved.
25  *
26  * The Original Code is: all of this file.
27  *
28  * Contributor(s): none yet.
29  *
30  * ***** END GPL/BL DUAL LICENSE BLOCK *****
31  * Reorganised mar-01 nzc
32  * Some really low-level file thingies.
33  */
34
35 #include <sys/types.h>
36 #include <stdio.h>
37 #include <stdlib.h>     
38
39 #ifdef HAVE_CONFIG_H
40 #include <config.h>
41 #endif
42
43 #ifdef WIN32
44
45 #include <windows.h>
46 #include "BLI_winstuff.h"
47 #include <sys/types.h>
48 #include <io.h>
49 #include <direct.h>
50 #endif
51
52 #ifndef WIN32
53 #include <dirent.h>
54 #endif
55
56 #include <time.h>
57 #include <sys/stat.h>
58
59 #if !defined(linux) && (defined(__sgi) || defined(__sun__) || defined(__sun) || defined(__sparc) || defined(__sparc__))
60 #include <sys/statfs.h>
61 #endif
62
63 #if defined (__FreeBSD__) || defined (__OpenBSD__) || defined (__NetBSD__)
64 #include <sys/param.h>
65 #include <sys/mount.h>
66 #endif
67
68 #if defined(linux) || defined(__CYGWIN32__)
69 #include <sys/vfs.h>
70 #endif
71
72 #ifdef __BeOS
73 struct statfs {
74         int f_bsize;
75         int f_bfree;
76 };
77 #endif
78
79 #ifdef __APPLE__
80 /* For statfs */
81 #include <sys/param.h>
82 #include <sys/mount.h>
83 #endif /* __APPLE__ */
84
85
86 #include <fcntl.h>
87 #if !defined(__BeOS) && !defined(WIN32)
88 #include <sys/mtio.h>                   /* tape comando's */
89 #endif
90 #include <string.h>                     /* strcpy etc.. */
91
92 #ifndef WIN32
93 #include <sys/ioctl.h>
94 #include <unistd.h>                     /*  */
95 #include <pwd.h>
96 #endif
97
98 #if !defined(__FreeBSD__) && !defined(__APPLE__)
99 #include <malloc.h>
100 #endif
101
102 /* lib includes */
103 #include "MEM_guardedalloc.h"
104
105 #include "DNA_listBase.h"
106 #include "BLI_blenlib.h"
107 #include "BLI_storage.h"
108 #include "BLI_storage_types.h"
109
110 #include "BLI_util.h"
111 #include "BLI_linklist.h"
112
113 /* vars: */
114 static int totnum,actnum;
115 static struct direntry *files;
116
117 static struct ListBase dirbase_={
118         0,0};
119 static struct ListBase *dirbase = &dirbase_;
120
121
122 char *BLI_getwdN(char *dir)
123 {
124         char *pwd;
125
126         if (dir) {
127                 pwd = getenv("PWD");
128                 if (pwd){
129                         strcpy(dir, pwd);
130                         return(dir);
131                 }
132                 /* 160 is FILE_MAXDIR in filesel.c */
133                 return( getcwd(dir, 160) );
134         }
135         return(0);
136 }
137
138
139 int BLI_compare(struct direntry *entry1, struct direntry *entry2)
140 {
141         /* type is equal to stat.st_mode */
142
143         if (S_ISDIR(entry1->type)){
144                 if (S_ISDIR(entry2->type)==0) return (-1);
145         } else{
146                 if (S_ISDIR(entry2->type)) return (1);
147         }
148         if (S_ISREG(entry1->type)){
149                 if (S_ISREG(entry2->type)==0) return (-1);
150         } else{
151                 if (S_ISREG(entry2->type)) return (1);
152         }
153         if ((entry1->type & S_IFMT) < (entry2->type & S_IFMT)) return (-1);
154         if ((entry1->type & S_IFMT) > (entry2->type & S_IFMT)) return (1);
155         
156         /* make sure "." and ".." are always first */
157         if( strcmp(entry1->relname, ".")==0 ) return (-1);
158         if( strcmp(entry2->relname, ".")==0 ) return (1);
159         if( strcmp(entry1->relname, "..")==0 ) return (-1);
160         
161         return (strcasecmp(entry1->relname,entry2->relname));
162 }
163
164
165 double BLI_diskfree(char *dir)
166 {
167 #ifdef WIN32
168         DWORD sectorspc, bytesps, freec, clusters;
169         char tmp[4];
170         
171         tmp[0]='\\'; tmp[1]=0; /* Just a failsafe */
172         if (dir[0]=='/' || dir[0]=='\\') {
173                 tmp[0]='\\';
174                 tmp[1]=0;
175         } else if (dir[1]==':') {
176                 tmp[0]=dir[0];
177                 tmp[1]=':';
178                 tmp[2]='\\';
179                 tmp[3]=0;
180         }
181
182         GetDiskFreeSpace(tmp,&sectorspc, &bytesps, &freec, &clusters);
183
184         return (double) (freec*bytesps*sectorspc);
185 #else
186         struct statfs disk;
187         char name[100],*slash;
188
189
190         strcpy(name,dir);
191
192         if(strlen(name)){
193                 slash = strrchr(name,'/');
194                 if (slash) slash[1] = 0;
195         } else strcpy(name,"/");
196
197 #if defined (__FreeBSD__) || defined (linux) || defined (__OpenBSD__) 
198         if (statfs(name, &disk)) return(-1);
199 #endif
200 #ifdef __BeOS
201         return -1;
202 #endif
203 #if !defined(linux) && (defined (__sgi) || defined (__sun__) || defined (__sun) || defined(__sparc) || defined(__sparc__))
204
205         if (statfs(name, &disk, sizeof(struct statfs), 0)){
206                 /* printf("diskfree: Couldn't get information about %s.\n",dir); */
207                 return(-1);
208         }
209 #endif
210
211         return ( ((double) disk.f_bsize) * ((double) disk.f_bfree));
212 #endif
213 }
214
215 static int hide_dot= 0;
216
217 void BLI_hide_dot_files(int set)
218 {
219         if(set) hide_dot= 1;
220         else hide_dot= 0;
221 }
222
223 void BLI_builddir(char *dirname, char *relname)
224 {
225         struct dirent *fname;
226         struct dirlink *dlink;
227         int rellen, newnum = 0, seen_ = 0, seen__ = 0;
228         char buf[256];
229         DIR *dir;
230
231         strcpy(buf,relname);
232         rellen=strlen(relname);
233
234         if (rellen){
235                 buf[rellen]='/';
236                 rellen++;
237         }
238
239         if (chdir(dirname) == -1){
240                 perror(dirname);
241                 return;
242         }
243
244         if (dir = (DIR *)opendir(".")){
245                 while ((fname = (struct dirent*) readdir(dir)) != NULL) {
246                         
247                         if(hide_dot && fname->d_name[0]=='.' && fname->d_name[1]!='.' && fname->d_name[1]!=0);
248                         else {
249                                 
250                                 dlink = (struct dirlink *)malloc(sizeof(struct dirlink));
251                                 if (dlink){
252                                         strcpy(buf+rellen,fname->d_name);
253         
254                                         dlink->name = strdup(buf);
255         
256                                         if (dlink->name[0] == '.') {
257                                                 if (dlink->name[1] == 0) seen_ = 1;
258                                                 else if (dlink->name[1] == '.') {
259                                                         if (dlink->name[2] == 0) seen__ = 1;
260                                                 }
261                                         }
262                                         BLI_addhead(dirbase,dlink);
263                                         newnum++;
264                                 }
265                         }
266                 }
267                 
268                 if (newnum){
269 #ifndef WIN32           
270                         if (seen_ == 0) {       /* Cachefs PATCH */
271                                 dlink = (struct dirlink *)malloc(sizeof(struct dirlink));
272                                 strcpy(buf+rellen,"./.");
273                                 dlink->name = strdup(buf);
274                                 BLI_addhead(dirbase,dlink);
275                                 newnum++;
276                         }
277                         if (seen__ == 0) {      /* MAC PATCH */
278                                 dlink = (struct dirlink *)malloc(sizeof(struct dirlink));
279                                 strcpy(buf+rellen,"./..");
280                                 dlink->name = strdup(buf);
281                                 BLI_addhead(dirbase,dlink);
282                                 newnum++;
283                         }
284 #endif                  
285
286                         if (files) files=(struct direntry *)realloc(files,(totnum+newnum) * sizeof(struct direntry));
287                         else files=(struct direntry *)malloc(newnum * sizeof(struct direntry));
288
289                         if (files){
290                                 dlink = (struct dirlink *) dirbase->first;
291                                 while(dlink){
292                                         memset(&files[actnum], 0 , sizeof(struct direntry));
293                                         files[actnum].relname = dlink->name;
294                                         stat(dlink->name,&files[actnum].s);
295                                         files[actnum].type=files[actnum].s.st_mode;
296                                         files[actnum].flags = 0;
297                                         totnum++;
298                                         actnum++;
299                                         dlink = dlink->next;
300                                 }
301                         } else{
302                                 printf("Couldn't get memory for dir\n");
303                                 exit(1);
304                         }
305
306                         BLI_freelist(dirbase);
307                         if (files) qsort(files, actnum, sizeof(struct direntry), (int (*)(const void *,const void*))BLI_compare);
308                 } else {
309                         printf("%s empty directory\n",dirname);
310                 }
311
312                 closedir(dir);
313         } else {
314                 printf("%s non-existant directory\n",dirname);
315         }
316 }
317
318 void BLI_adddirstrings()
319 {
320         char datum[100];
321         char buf[250];
322         char size[250];
323         static char * types[8] = {"---", "--x", "-w-", "-wx", "r--", "r-x", "rw-", "rwx"};
324         int num, mode;
325         int num1, num2, num3, num4, st_size;
326
327         struct direntry * file;
328         struct tm *tm;
329         time_t zero= 0;
330         struct passwd *pwuser;
331
332         file = &files[0];
333         
334         for(num=0;num<actnum;num++){
335 #ifdef WIN32
336                 mode = 0;
337                 strcpy(file->mode1, types[0]);
338                 strcpy(file->mode2, types[0]);
339                 strcpy(file->mode3, types[0]);
340 #else
341                 mode = file->s.st_mode;
342
343                 strcpy(file->mode1, types[(mode & 0700) >> 6]);
344                 strcpy(file->mode2, types[(mode & 0070) >> 3]);
345                 strcpy(file->mode3, types[(mode & 0007)]);
346                 
347                 if (((mode & S_ISGID) == S_ISGID) && (file->mode2[2]=='-'))file->mode2[2]='l';
348
349                 if (mode & (S_ISUID | S_ISGID)){
350                         if (file->mode1[2]=='x') file->mode1[2]='s';
351                         else file->mode1[2]='S';
352
353                         if (file->mode2[2]=='x')file->mode2[2]='s';
354                 }
355
356                 if (mode & S_ISVTX){
357                         if (file->mode3[2] == 'x') file->mode3[2] = 't';
358                         else file->mode3[2] = 'T';
359                 }
360 #endif
361
362 #ifdef WIN32
363                 strcpy(files[num].owner,"user");
364 #else
365                 pwuser = getpwuid(files[num].s.st_uid);
366                 if ( pwuser ) {
367                    strcpy(files[num].owner, pwuser->pw_name);
368                 } else {
369                    sprintf(files[num].owner, "%d", files[num].s.st_uid);
370                 }
371 #endif
372
373                 tm= localtime(&files[num].s.st_mtime);
374                 // prevent impossible dates in windows
375                 if(tm==NULL) tm= localtime(&zero);
376                 strftime(files[num].time, 8, "%H:%M", tm);
377                 strftime(files[num].date, 16, "%d-%b-%y", tm);
378
379                 st_size= (int)files[num].s.st_size;
380                 
381                 num1= st_size % 1000;
382                 num2= st_size/1000;
383                 num2= num2 % 1000;
384                 num3= st_size/(1000*1000);
385                 num3= num3 % 1000;
386                 num4= st_size/(1000*1000*1000);
387                 num4= num4 % 1000;
388
389                 if(num4) sprintf(files[num].size, "%3d %03d %03d %03d", num4, num3, num2, num1);
390                 else if(num3) sprintf(files[num].size, "%7d %03d %03d", num3, num2, num1);
391                 else if(num2) sprintf(files[num].size, "%11d %03d", num2, num1);
392                 else if(num1) sprintf(files[num].size, "%15d", num1);
393                 else sprintf(files[num].size, "0");
394
395                 strftime(datum, 32, "%d-%b-%y %R", tm);
396
397                 if (st_size < 1000) {
398                         sprintf(size, "%10d", st_size);
399                 } else if (st_size < 1000 * 1000) {
400                         sprintf(size, "%6d %03d", st_size / 1000, st_size % 1000);
401                 } else if (st_size < 100 * 1000 * 1000) {
402                         sprintf(size, "%2d %03d %03d", st_size / (1000 * 1000), (st_size / 1000) % 1000, st_size % 1000);
403                 } else {
404                         sprintf(size, "> %4.1f M", st_size / (1024.0 * 1024.0));
405                         sprintf(size, "%10d", st_size);
406                 }
407
408                 sprintf(buf,"%s %s %10s %s", files[num].date, files[num].time, size,
409                         files[num].relname);
410
411                 sprintf(buf,"%s %s %s %7s %s %s %10s %s", file->mode1, file->mode2, file->mode3, files[num].owner, files[num].date, files[num].time, size,
412                         files[num].relname);
413
414                 files[num].string=malloc(strlen(buf)+1);
415                 if (files[num].string){
416                         strcpy(files[num].string,buf);
417                 }
418
419                 file++;
420         }
421 }
422
423 unsigned int BLI_getdir(char *dirname,  struct direntry **filelist)
424 {
425         // reset global variables
426         // memory stored in files is free()'d in
427         // filesel.c:freefilelist()
428
429         actnum = totnum = 0;
430         files = 0;
431
432         BLI_builddir(dirname,"");
433         BLI_adddirstrings();
434
435         if (files) {
436                 *(filelist) = files;
437         } else {
438                 // keep blender happy. Blender stores this in a variable
439                 // where 0 has special meaning.....
440                 *(filelist) = files = malloc(sizeof(struct direntry));
441         }
442
443         return(actnum);
444 }
445
446
447 int BLI_filesize(int file)
448 {
449         struct stat buf;
450
451         if (file <= 0) return (-1);
452         fstat(file, &buf);
453         return (buf.st_size);
454 }
455
456
457
458 int BLI_exist(char *name)
459 {
460         struct stat st;
461
462         if (stat(name,&st)) return(0);
463         return(st.st_mode);
464 }
465
466 LinkNode *BLI_read_file_as_lines(char *name)
467 {
468         FILE *fp= fopen(name, "r");
469         LinkNode *lines= NULL;
470         char *buf;
471         int size;
472
473         if (!fp) return NULL;
474                 
475         fseek(fp, 0, SEEK_END);
476         size= ftell(fp);
477         fseek(fp, 0, SEEK_SET);
478
479         buf= malloc(size);
480         if (buf) {
481                 int i, last= 0;
482                 
483                         /* 
484                          * size = because on win32 reading
485                          * all the bytes in the file will return
486                          * less bytes because of crnl changes.
487                          */
488                 size= fread(buf, 1, size, fp);
489                 for (i=0; i<=size; i++) {
490                         if (i==size || buf[i]=='\n') {
491                                 char *line= BLI_strdupn(&buf[last], i-last);
492
493                                 BLI_linklist_prepend(&lines, line);
494                                 last= i+1;
495                         }
496                 }
497                 
498                 free(buf);
499         }
500         
501         fclose(fp);
502         
503         BLI_linklist_reverse(&lines);
504         return lines;
505 }
506
507 void BLI_free_file_lines(LinkNode *lines)
508 {
509         BLI_linklist_free(lines, (void(*)(void*)) MEM_freeN);
510 }